/Engine/Plugins/Runtime/nDisplay/Source/DisplayCluster/Public/Render/Viewport/IDisplayClusterViewportManager.h
Return all exist viewports objects [Game thread func]
const [TArrayView](API\Runtime\Core\Containers\TArrayView)< [TSharedPtr](API\Runtime\Core\Templates\TSharedPtr)< [IDisplayClusterViewport](API\Plugins\DisplayCluster\Render\Viewport\IDisplayClusterViewport), ESPMode::ThreadSafe > > GetViewports() const